On Fri, Nov 04, 2005 at 05:04:15PM -0800, Neil Harkins wrote:
>
> Hi. New to list, and didn't find an answer in the FAQ, or
> a quick search of the archive, sorry if this resurrects a horse:
>
> Does xfsdump -l use the journal to determine what's changed
> for an incremental dump?
No, the journal doesnt hold the sort of information
needed to make decisions related to incremental dumps
(its a circular log, not what you're thinking).
> Background: I'm currently using rsync to perform incremental updates
> of a subtree with a significant number of files, when only about 5%
> changes, and the filesystem walk to check each file's timestamp
> is totally unnecessary if the journal can be consulted.
It cannot.
> If xfsdump uses the journal to avoid the walk, then using
> xfsdump | xfsrestore would be ideal, except according to
> the man page, it doesn't allow incrementals of subtrees. :(
> Could someone explain why that is the case?
Not sure about that one off the top of my head.
cheers.
--
Nathan
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